Web server for Linux written in amd64 assembly

Pretty neat! It's awesome how assembly these days is reasonably high level:

https://github.com/nemasu/asmttpd/blob/master/http.asm

It dawns on me why we couldn't have shortcuts for several patterns that show up everywhere:

- mov, mov, mov then call/syscall could just be written as call(arg, arg, arg) since it's not that difficult to figure out which argument needs to go to which register if there was a defined order of arguments.

- push push push push pop pop pop pop could just be a define really. I realize that there are cases where you wouldn't necessarily do that, but that seems to be the minority. The compiler could just figure out what registers you use in the routine and push / pop those. If you want to keep a register, there could be added syntax for that.

It seems in both of these cases the language optimizes for simplicity and flexibility, ignoring the common case. Neither of these strike me as situations where introducing the abstraction would require a lot of compiler "magic" to guess and optimize. It's almost just string replacement.

Then again, you could just write all this in C and let the compiler figure it out. Interesting stuff!

That depends on how skilled the developer is, and what cpu subtype they are targeting :)

Couldn't you just find-replace this in a makefile?

Then again almost everything about assembly gets a bit "isn't that what we made other languages for?"

Maybe, maybe not, but for a web server, if asm vs. C is making a noticeable impact on the overall performance, one of them is doing something very wrong - they should spend most of their time in sys-calls to shuffle data to/from the network, not executing web server userland code.